# Tanchang County

Tanchang (Chinese: 宕昌; pinyin: Tànchāng), also pronounced Dàngchāng, is a county in the south of Gansu province, China. It is the westernmost county-level division of the prefecture-level city of Longnan. In 2017 its population was 319,400 people.

## History

During the 4th-5th century, the region was ruled by the Dangchang Kingdom. Then as part of the Western Xia, Tanchang was inhabited by Qiangics.

## Administrative divisions

Tanchang County has 11 towns and 13 townships and 1 ethnic township.

### Towns

| Chengguan (城关镇) Hadapu (哈达铺镇) Lichuan (理川镇) | Nanyang (南阳镇) Guanting (官亭镇) Shawan (沙湾镇) |
-Towns are upgraded from Township.
| Awu (阿坞镇) Nanhe (南河镇) | Bali (八力镇) |
-Towns are established newly.
| Linjiangpu (临江铺镇 | Lianghekou (两河口镇) |

### Townships

| Mu'er Township(木耳乡) Pangjia Township(庞家乡) Jiahe Township(贾河乡) Jiangtai Township(将台乡) Chela Township(车拉乡) Haodi Township(好梯乡) | Hanyuan Township(韩院乡) Zhuyuan Township(竹院乡) Xinghua Township(兴化乡) Ganjiangtou Township(甘江头乡) Xinzhai Township(新寨乡) Shizi Township(狮子乡) |
-Township is established newly.
* Hejiabao Township(何家堡乡)
-Former Townships are merged to other.
| Boji Township(簸箕乡) Jinmu Township(金木乡) Niujia Township(牛家乡) Dashe Township(大舍乡) Hejiabao Township(何家堡乡) | Qinyu Township(秦峪乡) Huama Township(化马乡) |

### ethnic township

* Xinchengzi Tibetan Ethnic Township (新城子藏族乡)

## Climate

Climate data for Tanchang, elevation 1,753 m (5,751 ft), (1991–2020 normals, extremes 1981–2010) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 15.2 (59.4) | 22.3 (72.1) | 30.3 (86.5) | 30.9 (87.6) | 33.0 (91.4) | 33.7 (92.7) | 36.7 (98.1) | 34.1 (93.4) | 33.8 (92.8) | 25.7 (78.3) | 23.1 (73.6) | 17.4 (63.3) | 36.7 (98.1) |
| Mean daily maximum °C (°F) | 5.6 (42.1) | 8.4 (47.1) | 13.3 (55.9) | 18.7 (65.7) | 22.2 (72.0) | 25.1 (77.2) | 27.5 (81.5) | 26.7 (80.1) | 21.7 (71.1) | 16.5 (61.7) | 12.1 (53.8) | 7.0 (44.6) | 17.1 (62.7) |
| Daily mean °C (°F) | −1.6 (29.1) | 1.6 (34.9) | 6.2 (43.2) | 11.2 (52.2) | 14.8 (58.6) | 18.2 (64.8) | 20.7 (69.3) | 20.0 (68.0) | 15.8 (60.4) | 10.6 (51.1) | 5.1 (41.2) | −0.6 (30.9) | 10.2 (50.3) |
| Mean daily minimum °C (°F) | −6.7 (19.9) | −3.2 (26.2) | 1.1 (34.0) | 5.4 (41.7) | 9.0 (48.2) | 12.7 (54.9) | 15.5 (59.9) | 15.2 (59.4) | 11.8 (53.2) | 6.7 (44.1) | 0.4 (32.7) | −5.6 (21.9) | 5.2 (41.3) |
| Record low °C (°F) | −15.5 (4.1) | −13.4 (7.9) | −13.1 (8.4) | −4.1 (24.6) | −0.4 (31.3) | 4.7 (40.5) | 6.9 (44.4) | 5.7 (42.3) | 1.3 (34.3) | −4.6 (23.7) | −10.5 (13.1) | −16.6 (2.1) | −16.6 (2.1) |
| Average precipitation mm (inches) | 4.7 (0.19) | 8.0 (0.31) | 23.2 (0.91) | 48.9 (1.93) | 80.8 (3.18) | 83.5 (3.29) | 87.9 (3.46) | 92.5 (3.64) | 75.0 (2.95) | 58.3 (2.30) | 10.8 (0.43) | 2.3 (0.09) | 575.9 (22.68) |
| Average precipitation days (≥ 0.1 mm) | 5.2 | 6.0 | 10.0 | 12.5 | 15.8 | 15.4 | 14.0 | 13.4 | 15.4 | 14.7 | 5.8 | 2.6 | 130.8 |
| Average snowy days | 9.8 | 9.8 | 6.1 | 0.9 | 0 | 0 | 0 | 0 | 0 | 0.2 | 2.9 | 6.3 | 36 |
| Average relative humidity (%) | 58 | 59 | 60 | 60 | 64 | 68 | 69 | 70 | 75 | 74 | 67 | 60 | 65 |
| Mean monthly sunshine hours | 164.7 | 142.9 | 153.3 | 169.0 | 184.5 | 167.1 | 183.0 | 176.1 | 115.6 | 120.8 | 151.9 | 169.4 | 1,898.3 |
| Percent possible sunshine | 52 | 46 | 41 | 43 | 43 | 39 | 42 | 43 | 32 | 35 | 49 | 55 | 43 |
| Source: China Meteorological Administration ||||||||||||||

## Transport

* China National Highway 212